Abstract
The newly developed coating type ceramic tip has been already used clinically to treat lesions of G. I. tract. Asessing the efficacy and safety of this of type ceramic tip for clinical application of Laser angioplasty, in vitro basic quantitative study was performed using specimens of human common iliac artery. The volume of laser ablation was measured on each energy of Nd: YAG 1.32μm laser irradiation using two types of ceramic tip (coating type ceramic tip and non-coated usual tips). The quantitative data were analyzed to determine the significance of two types tip. A definite difference in volume of laser ablation was cleary demonstrated. The volume of laser ablation irradiated by coating type tip was larger than non-coating usual type tip. As the laser energy incresed, the volume of ablation increased. Using coatig type ceramic tip at over 30J, volume of laser ablation increased sharply and 60J laser perforated the iliac artery.
